Not specifically seeing these issues, but I have at least one 4900M and
a few 4500 Sup6E's running 12.2(52/53)SG that are experiencing CPU
issues. When configured with sub-second OSPF hello timers, they drop
adjacencies when I copy a file (ftp/tftp) to bootflash. High CPU
utilization in the Exec/Virtual Exec process. I suspect something is
messed up with the scheduling/prioritization of processes. This may be
causing the issues that you're seeing as well.
BTW -- the OSPF issue is bug id CSCsw84727. Cisco says it's fixed in
12.2(52 and 53)SG, but it's obviously not. Still waiting on resolution
for this one.
Adam Rothschild wrote:
Hi all,
Anybody out there running into CPU exhaustion issues on this box (or a
non-fixed-configuration Sup6E, ...), linked to the "low priority"
management process and its dependencies?
I'm specifically tracking CSCta54369 ("High CPU caused due to
K5AclCamStatsMan hw process") along with CSCta77487 ("High cpu in K5L3
review jobs with incomplete arps and big routing table").
Cisco's troubleshooting guide[1] provides an interesting top-level
overview of the architecture, though stops short of dispensing
meaningful configuration pointers, assuming they exist.
I've got a TAC case going, meanwhile any clues and/or experiences from
the field, on- or off-list, would be greatly appreciated. :-)
Thanks in advance,
-a
[1]
http://www.cisco.com/en/US/products/hw/switches/ps663/products_tech_note09186a00804cef15.shtml
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